Window and casement.



V. G. GRITTALL.

WINDOW AND (BASEMENT.

APPLICATION FILED JUNE 11, 1914.

Patented Mar. 23, 1915.

2 fil-IEETS-SHBET 1.

THE NORRIS PETERS 120., FHOTDJJTHQ. WASHINGTON. D. C

V. G; GRITTALL. WINDOW AND GASEMENT. APPLICATION FILED mm: 11, 1914.

Patented Mar. 23, 1915.

2 SHEETS-SHEET 2.

THE NORRIS PETERS CO, PHOTO-LITHO.. WASHINGTUN, D. C

' VALENTINE enonen CRITTALL, or BItAINTR-EE, ENGLAND, AssIeNon TO THEcRI'rraLL MANUFACTURING COMPANYyLIlVIITED, OF BRAINTBEE; ENGLAND.

WINDOW AND CASEMENT.

Toall' whom it may concern Be it known that I,

V CRITTALL, a subject of the King of Great up and down in metal jambs.The body of the jamb consists of a flat metal plate which is preferablythe head of a T the stem of which is let into the wall. Along the outeredge of the plate there is a flange pro]ect1ng at right angles from it.This flange may be conveniently formed'of an angle iron riveted to theplate. A strip of bronze or the like is preferably fixed to the innerfaceof the flange. Near the middle of the plate is fixed a grooved bar,on the inner side of which is preferably fixed a strip of bronze or thelike. A second grooved bar is fixed at the inner edge of the plate. Eachsliding frame consists of a double flanged or trough shaped bar and theouter faces of the outer flanges of these bars preferably have fixed tothem strips of bronze or the like. The strip on the outer flange of theupper frame slides in contact withthe strip on the inner face of theflange of the jamb plate, while the inner flange of the upper frame runsin the groove of the central grooved bar. The strip on the outer flangeof the lower frame slides in contact with the strip on the inner side ofthe central grooved bar, while the inner flange of the lower frame runsin the groove of the inner grooved bar. Each frame is provided withrollers (preferably four) which are pivoted between their flanges andbear againstthe outer faces of the two grooved bars.

The invention is applicable to the casements described in thespecification N 0. 1,002,228 the outer frames of such casements beingmade to slide up and down in the jambs as above described. The draw ingsshow such an'arrangement.

Figure 1 is an outside front elevation and Fig. 2 is a vertical sectionon the line 2- 2, Fig. 1; Fig. 3 is two local horizontal sections, thefront part being on theline 3-3,

. Fig. 1, and the rear part on the line 3"3",

Fig. 1. Figs. 4:, 5 and 6 show details.

a a are vertical T irons let into the side VALENTINE GEORGE-fipecification ofLetters IPatent. i Patented Mar, 1 915,- Applicationfiled June 11, 1914. Serial a... 844,568.

- Walls Oneof these walls is shown in Fi 3 but for the sake of'clearness they are omitj ted in Figs. land 2. 7.

a a are angle irons secured to the T irons by rivets a l a a are stripsof bronze fixed to the angle irons a 0 care the outer bars of the uppersash of easements constructed according to the former specification, andd d are the bars a. Only vertical bars 0 areemployed, there I being nocorresponding bars at the top andbottom.

0 c are bronze strips fixed to the bars 0' and sliding in contact withthe strips 00 f f are rollersmounted on studs f fixed to plates 7 whichare secured to the webs ofthe bars a by rivets f as shown at Figs.

a v gg are angle irons onfwhich the rollers run. These angle irons haveslots 9 (Figs.

3 and 6.

4: and 5) in them and they are secured by:

clamping strips h andscrews k whichscrew into holesin the T irons a.This construction allows of accurate adjustment inlthe fixing of theangle irons 9 so that when the casement is erected the strips '0 can befirmly but not too tightly pressed against the strips a i k are bronzestrips fixed to the clamping strips in. a

The lower sash is adjustably .secured in place in an exactly similarmanner.

j j are the outer vertical bars and 70 k are the bars of the inner framepivoted at Z Z to them. I

9' y' are bronze strips fixed to the bars" 9'. They are in contact withthe strips k and their rollers m run upon angle irons n which areexactly similar to the angle irons g and are as beforeadjustably'secured in place by clamping strips 0 and screws 0 The upperand lower sashes balance one another the'tops of the bars 0 and 7' beingconnected together by chains (not shown) which. pass over pulleys p.

' g g are plates fixed to the lower bar d'and upper bar is to make atight jointfbetween the upper and lower sashes.

them by bolts (not shown).

escape.

of the inner frame pivoted ate 6 tothe bars a" is a cast iron cillsituated between the lower'ends of the T irons-a and securedto What Iclaim is The combination of a jamb, an outer flange fixed to the jamb,an angle piece forming an inner flange and having slots in it, aclamping strip, screws passing through the slots and securing theclamping strip to the jarnb whereby said angle piece is made adjustable,a Vertical sash bar the g outer face of which is in direct contact atall times With the outer flange, and rollers piv- 10 oted to the sashbar and in direct contact With the inner flange.

VALENTINE GEORGE CRITTALL. Witnesses:

H. D. JAMEsoN, W. E. Romans. 7

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. (7.

